Conclusion

The Sigma achieves very good results, putting it in second place ahead of Canon 60mm f2.8 Macro USM, which it beats in every category except for chromatic aberration. Its very-well-corrected vignetting is its principal strong point with respect to the Canon — and with respect to the Nikon as well. Globally, however, it stays below the somewhat more expensive Nikon 105mm, which has better resolution and better-controlled chromatic aberrations.

Further readings for the Sigma 70mm F2.8 EX DG Macro

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First replies for this comment

Re: Nikkor 60mm micro

I've got the same question than you, about a macro lens topic (all brand) :1-Why a legendary lens as the 60mm Nikkor or the 150mm Sigma are not tested?2-Could be very comfortable to have a preselection of macro lenses to compare.3-The various tables of results should be more thick colored & contrasted in performance with faded backviews on this site.